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Finding the Fourth Proportional to 629.53, 866.70 and 496.51

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Solution

The fourth proportional to 629.53, 866.70 and 496.51 is: 683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.53 : 866.70 = 496.51 : x
  2. Step 2: Convert to fraction form
    629.53/866.70 = 496.51/x
  3. Step 3: Cross multiply
    629.53x = 866.70 × 496.51
  4. Step 4: Simplify right side
    629.53x = 430,325.22
  5. Step 5: Solve for x
    x = 430,325.22/629.53
  6. Step 6: Final answer
    x = 683.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.